But exactly those terms ALSO are used to name two types of FANS - specifically the MOTORS of the two fan types: 3-pin older Voltage Controlled Fans, and 4-pin newer PWM Fans. Because of the connector difference, many do use the terms "3-pin" and "4-pin" for these lighting systems. There's also a BIG potential for confusion. FYI, MSI uses on their mobo headers the labels JRGB for the second type, and JRAINBOW for the first type. Most people call the second type just plain RGB. You can NOT mix lights of both types into one circuit. So each type of light strip MUST be connected ONLY to a header or Controller that is designed for that light type.
So there are TWO important differences - the power supply voltage, and the method of controlling the light colours. So at any moment, the entire strip must all be ONE colour, although that can be changed. The mobo header manipulates the three Ground lines to change colours. Same for each of the two other LED colours. Along the strip, all the LED's of one colour are connected to the same Ground line, so they ALL must do exactly the same thing. Its wires supply power at 12 VDC and three Ground lines - one for each of the three LED colours. At any one moment, every group along the strip can be showing a different colour, so you can get fancy effects like rainbows that move. Each of these listens for an instruction packet and does what it is told with its little LED group. Along the strip the LED's are grouped with little control chips.
EXT LED STRIP CONNECTOR 4 PIN PLUS
Its wires supply power to the lights in its strip at 5 VDC, a common Ground plus a digital control line. The 3-pin type is properly called Addressable RGB (or ARGB or ADDR RGB or Digital RGB).
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